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Bohrium vs Europium

Bohrium
Europium
Europium vs Bohrium


Periodic Table
Symbol
Bh  
Eu  
Group Number
7  
11
Not Available  
Period Number
7  
6  
Block
d block  
f block  
Element Family
Transition Metal  
Lanthanide  
CAS Number
54037148  
12
7440531  
34
Space Group Name
Not Available  
Im_ 3m  
Space Group Number
Not Available  
229.00  
1
Facts
Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Not Available  
Sources
Found in Minerals, Mining, Synthetically Produced  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Eugène-Anatole Demarçay  
Discovery
In 1981  
In 1896  
Abundance
  
  
Abundance In Universe
Not Available  
5 * 10-8 %  
27
Abundance In Sun
~-9999 %  
~0.00000005 %  
27
Abundance In Meteorites
Not Available  
0.00 %  
99+
Abundance In Earth's Crust
Not Available  
0.00 %  
36
Abundance In Oceans
Not Available  
0.00 %  
99+
Uses
Uses & Benefits
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
  • Europium metals main uses is in the printing of euro banknotes. These notes glow red under UV light.
  • It is used in low energy light bulbs.
  
Industrial Uses
NA  
Chemical Industry  
Medical Uses
NA  
NA  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
Unknown  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
Not Available  
In Bone
0.00 p.p.m.  
36
Not Available  
Physical Properties
Melting Point
Not Available  
822.00 °C  
99+
Boiling Point
Not Available  
1,597.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Unknown  
Silvery White  
Luster
Unknown Luster  
Lustrous  
Hardness
  
  
Vickers Hardness
Not Available  
167.00 MPa  
34
Speed of Sound
Not Available  
Not Available  
Optical Properties
  
  
Allotropes
No  
No  
α Allotropes
Not Available  
Not Available  
β Allotropes
Not Available  
Not Available  
γ Allotropes
Not Available  
Not Available  
Chemical Properties
Chemical Formula
Bh  
Eu  
Isotopes
  
  
Known Isotopes
5  
32
31  
8
Electronegativity
  
  
Pauling Electronegativity
Not Available  
1.20  
39
Sanderson Electronegativity
Not Available  
1.01  
22
Electropositivity
  
  
Ionization Energies
  
  
1st Energy Level
742.90 kJ/mol  
23
547.10 kJ/mol  
99+
2nd Energy Level
1,688.50 kJ/mol  
30
1,085.00 kJ/mol  
99+
3rd Energy Level
2,566.50 kJ/mol  
99+
2,404.00 kJ/mol  
99+
4th Energy Level
3,598.90 kJ/mol  
99+
4,120.00 kJ/mol  
33
5th Energy Level
4,727.80 kJ/mol  
37
Not Available  
6th Energy Level
5,991.70 kJ/mol  
24
Not Available  
7th Energy level
7,226.80 kJ/mol  
22
Not Available  
Electrochemical Equivalent
Not Available  
1.89 g/amp-hr  
33
Electron Work Function
Not Available  
2.50 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
107  
11
63  
99+
Electron Configuration
[Rn] 5f14 6d5 7s2  
[Xe] 4f7 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
107  
11
63  
99+
Number of Neutrons
155  
8
89  
38
Number of Electrons
107  
11
63  
99+
Radius of an Atom
  
  
Atomic Radius
128.00 pm  
99+
180.00 pm  
14
Covalent Radius
141.00 pm  
99+
198.00 pm  
13
Van der Waals Radius
Not Available  
233.00 pm  
18
Atomic Weight
270.00 amu  
8
151.96 amu  
99+
Atomic Volume
Not Available  
28.90 cm3/mol  
8
Adjacent Atomic Numbers
  
  
Previous Element
Seaborgium
  
Samarium
  
Next Element
Hassium
  
Gadolinium
  
Valence Electron Potential
Not Available  
45.60 (-eV)  
35
Lattice Constant
Not Available  
458.10 pm  
17
Lattice Angles
NA  
π/2, π/2, π/2  
Lattice C/A Ratio
Not Available  
Not Available  
Mechanical Properties
Density
  
  
Density At Room Temperature
37.10 g/cm3  
3
5.26 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
5.13 g/cm3  
99+
Tensile Strength
Not Available  
120.00 MPa  
15
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available  
19.40 (Pa)  
4
Elasticity properties
  
  
Shear Modulus
Not Available  
7.90 GPa  
99+
Bulk Modulus
Not Available  
8.30 GPa  
99+
Young's Modulus
Not Available  
18.20 GPa  
99+
Poisson Ratio
Not Available  
0.15  
34
Other Mechanical Properties
Unknown  
Ductile  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available  
5.24  
99+
Magnetic Ordering
Unknown  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Unknown  
Conductor  
Resistivity
Not Available  
0.90 nΩ·m  
99+
Electrical Conductivity
Not Available  
0.01 106/cm Ω  
99+
Electron Affinity
Not Available  
50.00 kJ/mol  
21
Thermal Properties
Specific Heat
Not Available  
0.18 J/(kg K)  
33
Molar Heat Capacity
Not Available  
27.66 J/mol·K  
16
Thermal Conductivity
Not Available  
13.90 W/m·K  
99+
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
35.00 µm/(m·K)  
8
Enthalpy
  
  
Enthalpy of Vaporization
Not Available  
143.50 kJ/mol  
99+
Enthalpy of Fusion
Not Available  
9.21 kJ/mol  
37
Enthalpy of Atomization
Not Available  
180.00 kJ/mol  
99+
Standard Molar Entropy
Not Available  
77.80 J/mol.K  
4
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